<?php 

/**
* 
*/
class Haiyang extends Diqiu
{
	public Static $color;
	public $wendu;
	public function __construct($color='蓝色',$wendu=null)
	{
		//$this->color = $color;
		self::$color = $color;
		$this->wendu = $wendu;
	}

	public function liu($a=null)
	{
		echo self::$color.$a;
	}

	public Static function xishou($b=null)
	{
		echo $b."海水会吸收热量";
	}

}







 ?>